19740100

素因数分解:

$2^2\times 5^2\times {\mathrm{307}}^1\times {\mathrm{643}}^1$

素因数の和:964

約数の個数: 36

約数和(自身を含む): 43042384

約数和(自身を除く): 23302284

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 307, 614, 643, 1228, 1286, 1535, 2572, 3070, 3215, 6140, 6430, 7675, 12860, 15350, 16075, 30700, 32150, 64300, 197401, 394802, 789604, 987005, 1974010, 3948020, 4935025, 9870050, 19740100]

約数ペア:

[(1, 19740100), (2, 9870050), (4, 4935025), (5, 3948020), (10, 1974010), (20, 987005), (25, 789604), (50, 394802), (100, 197401), (307, 64300), (614, 32150), (643, 30700), (1228, 16075), (1286, 15350), (1535, 12860), (2572, 7675), (3070, 6430), (3215, 6140)]